What could be a potential risk of inadequate ventilation in bathrooms?

Inadequate ventilation in bathrooms can lead to excess moisture accumulation, which poses significant risks such as mold growth and wood rot. Bathrooms are naturally humid environments due to activities like showering and bathing. When this moisture is not properly vented to the outside, it can saturate the air and surfaces.

Mold thrives in damp conditions and can start growing on various surfaces, including walls, ceilings, and fixtures, leading to health issues for occupants, such as respiratory problems and allergies. Additionally, excessive moisture can seep into building materials, causing wood to rot, which compromises structural integrity and necessitates costly repairs. Proper ventilation is essential to control humidity levels and prevent these hazards, making it critical to address ventilation when evaluating a bathroom's condition.